private bool CallNoInvoke(InvocationTransaction tx, out byte[] txhash)
{
ApplicationEngine engine = ApplicationEngine.Run(tx.Script, tx);
bool fault = engine.State.HasFlag(VMState.FAULT);
Fixed8 gas = engine.GasConsumed - Fixed8.FromDecimal(10);
if (gas < Fixed8.Zero)
{
gas = Fixed8.Zero;
}
var obj = new
{
VMState = engine.State.ToString(),
GasConsumed = (decimal)engine.GasConsumed,
EvaluationStack = engine.ResultStack.Select(p => p.ToParameter()).ToArray(),
GasToSpend = (decimal)gas.Ceiling()
};
string res = JsonConvert.SerializeObject(obj);
txhash = Encoding.UTF8.GetBytes(res);
return(!fault);
}
public static InvocationTransaction MakeMultiSignatureTransaction(byte[] script, int m, KeyPair[] keypairs, Fixed8 gasLimit, Fixed8 gasPrice)
{
InvocationTransaction tx = new InvocationTransaction
{
Nonce = Transaction.GetNonce(),
Script = script,
GasPrice = gasPrice,
GasLimit = gasLimit.Ceiling(),
Account = GetMultiSigRedeemScriptHash(m, keypairs)
};
int count = keypairs.Length;
ECPoint[] pubkeys = keypairs.Select(p => p.PublicKey).ToArray();
tx.Attributes = new TransactionAttribute[0];
byte[] data = GetHashData(tx);
byte[][] signatures = new byte[count][];
int i = 0;
foreach (KeyPair keypair in keypairs.OrderBy(p => p.PublicKey))
{
signatures[i++] = Sign(data, keypair.PrivateKey, keypair.PublicKey);
}
AddWitness(tx, signatures, m, pubkeys);
return(tx);
}
public static InvocationTransaction MakeTransaction(byte[] script, KeyPair keypair, Fixed8 gasLimit, Fixed8 gasPrice)
{
InvocationTransaction tx = new InvocationTransaction
{
Nonce = Transaction.GetNonce(),
Script = script,
GasPrice = gasPrice,
GasLimit = gasLimit.Ceiling(),
Account = GetPublicKeyHash(keypair.PublicKey)
};
tx.Attributes = new TransactionAttribute[1];
TransactionAttribute transactionAttribute = new TransactionAttribute()
{
Usage = TransactionAttributeUsage.Remark1,
Data = Encoding.UTF8.GetBytes("TestTestTest")
};
tx.Attributes[0] = transactionAttribute;
byte[] data = GetHashData(tx);
byte[] signdata = Sign(data, keypair.PrivateKey, keypair.PublicKey);
AddWitness(tx, signdata, keypair.PublicKey);
return(tx);
}
/// <summary>
/// 获取GAS消耗
/// </summary>
/// <param name="consumed">实际消耗的gas</param>
/// <returns>
/// GAS消息等于实际消耗的GAS减去免费的10GAS；
/// 若gas消耗小于等于0，则返回0；
/// 最后对gas消耗取上整数
/// </returns>
public static Fixed8 GetGas(Fixed8 consumed)
{
Fixed8 gas = consumed - Fixed8.FromDecimal(10);
if (gas <= Fixed8.Zero)
{
return(Fixed8.Zero);
}
return(gas.Ceiling());
}
public void Ceilling_Provide100000000Fixed8Object_NoCellingNeeded()
{
var actual = new Fixed8(100000000);
var cellingValue = actual.Ceiling();
Asserting
.That(cellingValue)
.IsEqual(actual);
}
public static Fixed8 GetGasLimit(Fixed8 consumed)
{
Fixed8 gas = consumed;
if (gas <= Fixed8.Zero)
{
return(Fixed8.Zero);
}
return(gas.Ceiling());
}
public static Fixed8 GetGas(Fixed8 consumed, Fixed8 freeAmount)
{
Fixed8 gas = consumed - freeAmount;
if (gas <= Fixed8.Zero)
{
return(Fixed8.Zero);
}
return(gas.Ceiling());
}
public static Fixed8 GetFuel(Fixed8 consumed)
{
Fixed8 fuel = consumed - Fixed8.FromDecimal(10);
if (fuel <= Fixed8.Zero)
{
return(Fixed8.Zero);
}
return(fuel.Ceiling());
}
public void Ceilling_Provide100500000Fixed8Object_RemaiderLessThanZeroLogic()
{
var actual = new Fixed8(-100500000);
var expectedCeillingFixed8 = new Fixed8(-100000000);
var cellingValue = actual.Ceiling();
Asserting
.That(cellingValue)
.IsEqual(expectedCeillingFixed8);
}
public static Fixed8 GetGas(Fixed8 consumed)
{
TR.Enter();
Fixed8 gas = consumed - Fixed8.FromDecimal(10);
if (gas <= Fixed8.Zero)
{
return(TR.Exit(Fixed8.Zero));
}
return(TR.Exit(gas.Ceiling()));
}
private static Fixed8 GetGasConsumed(byte[] script)
{
RpcInvokeResult response = rpcClient.InvokeScript(script);
if (Fixed8.TryParse(response.GasConsumed, out Fixed8 result))
{
Fixed8 gas = result - Fixed8.FromDecimal(10);
if (gas <= Fixed8.Zero)
{
return(Fixed8.Zero);
}
else
{
return(gas.Ceiling());
}
}
throw new Exception();
}
public static InvocationTransaction MakeTransaction(byte[] script, KeyPair keypair, Fixed8 gasLimit, Fixed8 gasPrice)
{
InvocationTransaction tx = new InvocationTransaction
{
Nonce = Transaction.GetNonce(),
Script = script,
GasPrice = gasPrice,
GasLimit = gasLimit.Ceiling(),
Account = GetPublicKeyHash(keypair.PublicKey)
};
tx.Attributes = new TransactionAttribute[0];
byte[] data = GetHashData(tx);
byte[] signdata = Sign(data, keypair.PrivateKey, keypair.PublicKey);
AddWitness(tx, signdata, keypair.PublicKey);
return(tx);
}
public static bool Exec(Wallet wallet, LocalNode node, UInt160 scriptHash, UInt160 changeAddress, string operation, params object[] args)
{
byte[] script = MakeExecScript(scriptHash, operation, args);
ApplicationEngine engine = ApplicationEngine.Run(script);
Fixed8 gas = engine.GasConsumed - Fixed8.FromDecimal(10);
if (gas < Fixed8.Zero)
{
gas = Fixed8.Zero;
}
gas = gas.Ceiling();
Fixed8 fee = gas.Equals(Fixed8.Zero) ? Fixed8.FromDecimal(0.001m) : Fixed8.Zero;
InvocationTransaction it = wallet.MakeTransaction(new InvocationTransaction
{
Version = 1,
Script = script,
Gas = gas,
Attributes = new TransactionAttribute[0],
Inputs = new CoinReference[0],
Outputs = new TransactionOutput[0]
}, change_address: changeAddress, fee: fee);
return(SignAndShowInformation(wallet, node, it));
}
protected override JObject Process(string method, JArray _params)
{
switch (method)
{
case "getapplicationlog":
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
string path = Path.Combine(Settings.Default.Paths.ApplicationLogs, $"{hash}.json");
return(File.Exists(path)
? JObject.Parse(File.ReadAllText(path))
: throw new RpcException(-100, "Unknown transaction"));
}
case "getbalance":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied.");
}
else
{
UInt256 assetId = UInt256.Parse(_params[0].AsString());
IEnumerable <Coin> coins = Program.Wallet.GetCoins().Where(p => !p.State.HasFlag(CoinState.Spent) && p.Output.AssetId.Equals(assetId));
JObject json = new JObject();
json["balance"] = coins.Sum(p => p.Output.Value).ToString();
json["confirmed"] = coins.Where(p => p.State.HasFlag(CoinState.Confirmed)).Sum(p => p.Output.Value).ToString();
return(json);
}
case "listaddress":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied.");
}
else
{
return(Program.Wallet.GetAccounts().Select(p =>
{
JObject account = new JObject();
account["address"] = p.Address;
account["haskey"] = p.HasKey;
account["label"] = p.Label;
account["watchonly"] = p.WatchOnly;
return account;
}).ToArray());
}
case "sendfrom":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
UIntBase assetId = UIntBase.Parse(_params[0].AsString());
AssetDescriptor descriptor = new AssetDescriptor(assetId);
UInt160 from = Wallet.ToScriptHash(_params[1].AsString());
UInt160 to = Wallet.ToScriptHash(_params[2].AsString());
BigDecimal value = BigDecimal.Parse(_params[3].AsString(), descriptor.Decimals);
if (value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
Fixed8 fee = _params.Count >= 5 ? Fixed8.Parse(_params[4].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 6 ? Wallet.ToScriptHash(_params[5].AsString()) : null;
Transaction tx = Program.Wallet.MakeTransaction(null, new[]
{
new TransferOutput
{
AssetId = assetId,
Value = value,
ScriptHash = to
}
}, from: from, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Program.Wallet.Sign(context);
if (context.Completed)
{
tx.Scripts = context.GetScripts();
Program.Wallet.ApplyTransaction(tx);
LocalNode.Relay(tx);
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "sendtoaddress":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
UIntBase assetId = UIntBase.Parse(_params[0].AsString());
AssetDescriptor descriptor = new AssetDescriptor(assetId);
UInt160 scriptHash = Wallet.ToScriptHash(_params[1].AsString());
BigDecimal value = BigDecimal.Parse(_params[2].AsString(), descriptor.Decimals);
if (value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
Fixed8 fee = _params.Count >= 4 ? Fixed8.Parse(_params[3].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 5 ? Wallet.ToScriptHash(_params[4].AsString()) : null;
Transaction tx = Program.Wallet.MakeTransaction(null, new[]
{
new TransferOutput
{
AssetId = assetId,
Value = value,
ScriptHash = scriptHash
}
}, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Program.Wallet.Sign(context);
if (context.Completed)
{
tx.Scripts = context.GetScripts();
Program.Wallet.ApplyTransaction(tx);
LocalNode.Relay(tx);
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "sendmany":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
JArray to = (JArray)_params[0];
if (to.Count == 0)
{
throw new RpcException(-32602, "Invalid params");
}
TransferOutput[] outputs = new TransferOutput[to.Count];
for (int i = 0; i < to.Count; i++)
{
UIntBase asset_id = UIntBase.Parse(to[i]["asset"].AsString());
AssetDescriptor descriptor = new AssetDescriptor(asset_id);
outputs[i] = new TransferOutput
{
AssetId = asset_id,
Value = BigDecimal.Parse(to[i]["value"].AsString(), descriptor.Decimals),
ScriptHash = Wallet.ToScriptHash(to[i]["address"].AsString())
};
if (outputs[i].Value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
}
Fixed8 fee = _params.Count >= 2 ? Fixed8.Parse(_params[1].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 3 ? Wallet.ToScriptHash(_params[2].AsString()) : null;
Transaction tx = Program.Wallet.MakeTransaction(null, outputs, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Program.Wallet.Sign(context);
if (context.Completed)
{
tx.Scripts = context.GetScripts();
Program.Wallet.ApplyTransaction(tx);
LocalNode.Relay(tx);
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "getnewaddress":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
WalletAccount account = Program.Wallet.CreateAccount();
if (Program.Wallet is NEP6Wallet wallet)
{
wallet.Save();
}
return(account.Address);
}
case "dumpprivkey":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
UInt160 scriptHash = Wallet.ToScriptHash(_params[0].AsString());
WalletAccount account = Program.Wallet.GetAccount(scriptHash);
return(account.GetKey().Export());
}
case "signdata":
if (Program.Wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
byte[] data = System.Text.Encoding.UTF8.GetBytes(_params[0].AsString());
KeyPair keys = Program.Wallet.GetAccounts().First().GetKey();
using (keys.Decrypt())
{
byte[] pubkey = keys.PublicKey.EncodePoint(false).Skip(1).ToArray();
return(Convert.ToBase64String(Crypto.Default.Sign(data, keys.PrivateKey, pubkey)));
}
}
case "invoke":
case "invokefunction":
case "invokescript":
JObject result = base.Process(method, _params);
if (Program.Wallet != null)
{
InvocationTransaction tx = new InvocationTransaction
{
Version = 1,
Script = result["script"].AsString().HexToBytes(),
Gas = Fixed8.Parse(result["gas_consumed"].AsString())
};
tx.Gas -= Fixed8.FromDecimal(10);
if (tx.Gas < Fixed8.Zero)
{
tx.Gas = Fixed8.Zero;
}
tx.Gas = tx.Gas.Ceiling();
tx = Program.Wallet.MakeTransaction(tx);
if (tx != null)
{
ContractParametersContext context = new ContractParametersContext(tx);
Program.Wallet.Sign(context);
if (context.Completed)
{
tx.Scripts = context.GetScripts();
}
else
{
tx = null;
}
}
result["tx"] = tx?.ToArray().ToHexString();
}
return(result);
case "executescript":
{
if (Program.Wallet == null)
{
return(false);
}
byte[] script = _params[0].AsString().HexToBytes();
ApplicationEngine engine = ApplicationEngine.Run(script);
Fixed8 gas = engine.GasConsumed - Fixed8.FromDecimal(10);
if (gas < Fixed8.Zero)
{
gas = Fixed8.Zero;
}
gas = gas.Ceiling();
Fixed8 fee = gas.Equals(Fixed8.Zero) ? Fixed8.FromDecimal(0.001m) : Fixed8.Zero;
InvocationTransaction tx = Program.Wallet.MakeTransaction(new InvocationTransaction
{
Version = 1,
Script = script,
Gas = gas,
Attributes = new TransactionAttribute[0],
Inputs = new CoinReference[0],
Outputs = new TransactionOutput[0]
}, fee: fee);
if (tx == null)
{
return(false);
}
ContractParametersContext context;
try
{
context = new ContractParametersContext(tx);
}
catch (Exception)
{
return(false);
}
Program.Wallet.Sign(context);
if (!context.Completed)
{
return(false);
}
context.Verifiable.Scripts = context.GetScripts();
Program.Wallet.ApplyTransaction(tx);
return(LocalNode.Relay(tx));
}
default:
return(base.Process(method, _params));
}
}